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arXiv · 1702.06947

Mass of the compact object in the Be/gamma-ray binaries LSI+61303 and MWC 148

R. K. Zamanov·J. Marti·M. T. Garcia-Hernandez
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Abstract

We estimate the mass of the compact object in the gamma-ray binaries LSI+61303 and MWC 148, using the latest data for the inclination, orbital motion and assuming that the orbital plane coincides with the equatorial plane of the Be star. For LSI+61303 we find the mass of the compact object to be most likely in the range 1.3 M_sun < M_2 < 2.0 M_sun, which means that it is probably a neutron star. For MWC 148, we find the mass of the compact object in a higher range, 2.1 M_sum < M_2 < 7.3 M_sun, which increases the chances for this system to host a black hole companion.

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R. K. Zamanov, J. Marti, M. T. Garcia-Hernandez. 2017-02-22. Mass of the compact object in the Be/gamma-ray binaries LSI+61303 and MWC 148. https://arxiv.org/abs/1702.06947

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